1612130040 has 96 divisors (see below), whose sum is σ = 5433508080. Its totient is φ = 429898752.

The previous prime is 1612130017. The next prime is 1612130041. The reversal of 1612130040 is 400312161.

It is a happy number.

1612130040 is a `hidden beast` number, since 1 + 612 + 13 + 0 + 0 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1612129995 and 1612130022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1612130041) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 73209 + ... + 92648.

Almost surely, 2^1612130040 is an apocalyptic number.

1612130040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1612130040 is an abundant number, since it is smaller than the sum of its proper divisors (3821378040).

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

1612130040 is a wasteful number, since it uses less digits than its factorization.

1612130040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165883 (or 165867 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1612130040 is about 40151.3392055608. The cubic root of 1612130040 is about 1172.5553615945. Note that the first 3 decimals are identical.

The spelling of 1612130040 in words is "one billion, six hundred twelve million, one hundred thirty thousand, forty".