401553242 has 8 divisors (see below), whose sum is σ = 615145536. Its totient is φ = 196504732.

The previous prime is 401553211. The next prime is 401553263. The reversal of 401553242 is 242355104.

It is a happy number.

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

It is a super-2 number, since 2×401553242² = 322490012321421128, which contains 22 as substring.

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, 2135828 + ... + 2136015.

It is an arithmetic number, because the mean of its divisors is an integer number (76893192).

Almost surely, 2^401553242 is an apocalyptic number.

401553242 is a deficient number, since it is larger than the sum of its proper divisors (213592294).

401553242 is a wasteful number, since it uses less digits than its factorization.

401553242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4271892.

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

The square root of 401553242 is about 20038.7934267510. The cubic root of 401553242 is about 737.7587666889.

The spelling of 401553242 in words is "four hundred one million, five hundred fifty-three thousand, two hundred forty-two".