1402542312 has 64 divisors (see below), whose sum is σ = 3632428800. Its totient is φ = 450750720.

The previous prime is 1402542311. The next prime is 1402542329. The reversal of 1402542312 is 2132452041.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (1402542311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 855958 + ... + 857594.

It is an arithmetic number, because the mean of its divisors is an integer number (56756700).

Almost surely, 2^1402542312 is an apocalyptic number.

1402542312 is a gapful number since it is divisible by the number (12) 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 1402542312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1816214400).

1402542312 is an abundant number, since it is smaller than the sum of its proper divisors (2229886488).

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

1402542312 is a wasteful number, since it uses less digits than its factorization.

1402542312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2906 (or 2902 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 1402542312 is about 37450.5315316085. The cubic root of 1402542312 is about 1119.3656888704.

Adding to 1402542312 its reverse (2132452041), we get a palindrome (3534994353).

It can be divided in two parts, 140 and 2542312, that added together give a palindrome (2542452).

The spelling of 1402542312 in words is "one billion, four hundred two million, five hundred forty-two thousand, three hundred twelve".