401245400 has 48 divisors (see below), whose sum is σ = 963003840. Its totient is φ = 155318400.

The previous prime is 401245391. The next prime is 401245423. The reversal of 401245400 is 4542104.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26159 + ... + 38558.

It is an arithmetic number, because the mean of its divisors is an integer number (20062580).

Almost surely, 2^401245400 is an apocalyptic number.

401245400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

401245400 is an abundant number, since it is smaller than the sum of its proper divisors (561758440).

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

401245400 is a wasteful number, since it uses less digits than its factorization.

401245400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64764 (or 64755 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 401245400 is about 20031.1108029485. The cubic root of 401245400 is about 737.5701896234.

Adding to 401245400 its reverse (4542104), we get a palindrome (405787504).

The spelling of 401245400 in words is "four hundred one million, two hundred forty-five thousand, four hundred".