402051542 has 16 divisors (see below), whose sum is σ = 607642560. Its totient is φ = 199508808.

The previous prime is 402051497. The next prime is 402051553. The reversal of 402051542 is 245150204.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 281033 + ... + 282459.

It is an arithmetic number, because the mean of its divisors is an integer number (37977660).

Almost surely, 2^402051542 is an apocalyptic number.

402051542 is a deficient number, since it is larger than the sum of its proper divisors (205591018).

402051542 is a wasteful number, since it uses less digits than its factorization.

402051542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2395.

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 402051542 is about 20051.2229552215. Note that the first 3 decimals coincide. The cubic root of 402051542 is about 738.0638098679.

The spelling of 402051542 in words is "four hundred two million, fifty-one thousand, five hundred forty-two".