1401452040 has 32 divisors (see below), whose sum is σ = 4204356480. Its totient is φ = 373720512.

The previous prime is 1401451991. The next prime is 1401452047. The reversal of 1401452040 is 402541041.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1401451998 and 1401452016.

It is not an unprimeable number, because it can be changed into a prime (1401452047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5839264 + ... + 5839503.

It is an arithmetic number, because the mean of its divisors is an integer number (131386140).

Almost surely, 2^1401452040 is an apocalyptic number.

1401452040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1401452040 is an abundant number, since it is smaller than the sum of its proper divisors (2802904440).

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

1401452040 is a wasteful number, since it uses less digits than its factorization.

1401452040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11678781 (or 11678777 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 1401452040 is about 37435.9725397912. The cubic root of 1401452040 is about 1119.0755658499.

Adding to 1401452040 its reverse (402541041), we get a palindrome (1803993081).

The spelling of 1401452040 in words is "one billion, four hundred one million, four hundred fifty-two thousand, forty".