401352542 has 16 divisors (see below), whose sum is σ = 650844240. Its totient is φ = 184975488.

The previous prime is 401352533. The next prime is 401352551. The reversal of 401352542 is 245253104.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (401352533) and next prime (401352551).

It is a super-2 number, since 2×401352542² = 322167725939723528, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141323 + ... + 144134.

It is an arithmetic number, because the mean of its divisors is an integer number (40677765).

Almost surely, 2^401352542 is an apocalyptic number.

401352542 is a deficient number, since it is larger than the sum of its proper divisors (249491698).

401352542 is a wasteful number, since it uses less digits than its factorization.

401352542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285515.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 401352542 is about 20033.7850143202. The cubic root of 401352542 is about 737.6358333355.

The spelling of 401352542 in words is "four hundred one million, three hundred fifty-two thousand, five hundred forty-two".