420974400 has 672 divisors, whose sum is σ = 1850452992. Its totient is φ = 81100800.

The previous prime is 420974399. The next prime is 420974413. The reversal of 420974400 is 4479024.

It is a tau number, because it is divible by the number of its divisors (672).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 6283167 + ... + 6283233.

Almost surely, 2^420974400 is an apocalyptic number.

420974400 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 420974400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (925226496).

420974400 is an abundant number, since it is smaller than the sum of its proper divisors (1429478592).

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

420974400 is a wasteful number, since it uses less digits than its factorization.

420974400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127 (or 112 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 420974400 is about 20517.6606853705. The cubic root of 420974400 is about 749.4659308950.

The spelling of 420974400 in words is "four hundred twenty million, nine hundred seventy-four thousand, four hundred".