401423750 has 80 divisors (see below), whose sum is σ = 926328480. Its totient is φ = 127008000.

The previous prime is 401423741. The next prime is 401423801. The reversal of 401423750 is 57324104.

It is a super-2 number, since 2×401423750² = 322282054128125000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 111986 + ... + 115514.

It is an arithmetic number, because the mean of its divisors is an integer number (11579106).

Almost surely, 2^401423750 is an apocalyptic number.

401423750 is an abundant number, since it is smaller than the sum of its proper divisors (524904730).

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

401423750 is a wasteful number, since it uses less digits than its factorization.

401423750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3571 (or 3556 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 26.

The square root of 401423750 is about 20035.5621333668. The cubic root of 401423750 is about 737.6794545586.

Adding to 401423750 its reverse (57324104), we get a palindrome (458747854).

The spelling of 401423750 in words is "four hundred one million, four hundred twenty-three thousand, seven hundred fifty".