1401532416 has 416 divisors, whose sum is σ = 4718016000. Its totient is φ = 408748032.

The previous prime is 1401532369. The next prime is 1401532417. The reversal of 1401532416 is 6142351041.

It is a happy number.

It is a super-2 number, since 2×1401532416² = 3928586226197594112, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 1401532416.

It is not an unprimeable number, because it can be changed into a prime (1401532417) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48328690 + ... + 48328718.

Almost surely, 2^1401532416 is an apocalyptic number.

1401532416 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1401532416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2359008000).

1401532416 is an abundant number, since it is smaller than the sum of its proper divisors (3316483584).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1401532416 is a wasteful number, since it uses less digits than its factorization.

1401532416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104 (or 76 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 1401532416 is about 37437.0460373144. The cubic root of 1401532416 is about 1119.0969591609.

Adding to 1401532416 its reverse (6142351041), we get a palindrome (7543883457).

The spelling of 1401532416 in words is "one billion, four hundred one million, five hundred thirty-two thousand, four hundred sixteen".