1674057420 has 72 divisors (see below), whose sum is σ = 5803403424. Its totient is φ = 382641408.

The previous prime is 1674057403. The next prime is 1674057457. The reversal of 1674057420 is 247504761.

1674057420 is a `hidden beast` number, since 1 + 67 + 4 + 0 + 574 + 20 = 666.

It is a super-3 number, since 3×1674057420³ (a number of 29 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 663049 + ... + 665568.

Almost surely, 2^1674057420 is an apocalyptic number.

1674057420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1674057420 is an abundant number, since it is smaller than the sum of its proper divisors (4129346004).

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

1674057420 is a wasteful number, since it uses less digits than its factorization.

1674057420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1328639 (or 1328634 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The square root of 1674057420 is about 40915.2467913857. The cubic root of 1674057420 is about 1187.3810587427.

The spelling of 1674057420 in words is "one billion, six hundred seventy-four million, fifty-seven thousand, four hundred twenty".