70974540 has 216 divisors, whose sum is σ = 270138960. Its totient is φ = 14950656.

The previous prime is 70974529. The next prime is 70974551. The reversal of 70974540 is 4547907.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (70974529) and next prime (70974551).

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

It is a junction number, because it is equal to n+sod(n) for n = 70974495 and 70974504.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 114351 + ... + 114969.

Almost surely, 2^70974540 is an apocalyptic number.

70974540 is a gapful number since it is divisible by the number (70) 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 70974540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135069480).

70974540 is an abundant number, since it is smaller than the sum of its proper divisors (199164420).

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

70974540 is a wasteful number, since it uses less digits than its factorization.

70974540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661 (or 649 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 70974540 is about 8424.6388646636. The cubic root of 70974540 is about 414.0322736165.

The spelling of 70974540 in words is "seventy million, nine hundred seventy-four thousand, five hundred forty".