401515242 has 8 divisors (see below), whose sum is σ = 803030496. Its totient is φ = 133838412.

The previous prime is 401515241. The next prime is 401515243. The reversal of 401515242 is 242515104.

It is an interprime number because it is at equal distance from previous prime (401515241) and next prime (401515243).

It is a sphenic number, since it is the product of 3 distinct primes.

401515242 is an admirable number.

It is a super-2 number, since 2×401515242² = 322428979116637128, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (401515241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33459598 + ... + 33459609.

It is an arithmetic number, because the mean of its divisors is an integer number (100378812).

Almost surely, 2^401515242 is an apocalyptic number.

401515242 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

401515242 is a wasteful number, since it uses less digits than its factorization.

401515242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66919212.

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 401515242 is about 20037.8452434387. The cubic root of 401515242 is about 737.7354939615.

The spelling of 401515242 in words is "four hundred one million, five hundred fifteen thousand, two hundred forty-two".