402032544 has 24 divisors (see below), whose sum is σ = 1055335680. Its totient is φ = 134010816.

The previous prime is 402032531. The next prime is 402032551. The reversal of 402032544 is 445230204.

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×402032544² = 323260332870223872, which contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2093824 + ... + 2094015.

It is an arithmetic number, because the mean of its divisors is an integer number (43972320).

Almost surely, 2^402032544 is an apocalyptic number.

It is an amenable number.

402032544 is an abundant number, since it is smaller than the sum of its proper divisors (653303136).

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

402032544 is a wasteful number, since it uses less digits than its factorization.

402032544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4187852 (or 4187844 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 402032544 is about 20050.7492129347. The cubic root of 402032544 is about 738.0521845283.

Adding to 402032544 its reverse (445230204), we get a palindrome (847262748).

The spelling of 402032544 in words is "four hundred two million, thirty-two thousand, five hundred forty-four".