1620612070 has 64 divisors (see below), whose sum is σ = 3643646976. Its totient is φ = 504190080.

The previous prime is 1620612067. The next prime is 1620612073. The reversal of 1620612070 is 702160261.

It is an interprime number because it is at equal distance from previous prime (1620612067) and next prime (1620612073).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1620612073) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 496564 + ... + 499816.

It is an arithmetic number, because the mean of its divisors is an integer number (56931984).

Almost surely, 2^1620612070 is an apocalyptic number.

1620612070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1620612070 is an abundant number, since it is smaller than the sum of its proper divisors (2023034906).

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

1620612070 is a wasteful number, since it uses less digits than its factorization.

1620612070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3925.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 1620612070 is about 40256.8263776468. The cubic root of 1620612070 is about 1174.6081856424.

The spelling of 1620612070 in words is "one billion, six hundred twenty million, six hundred twelve thousand, seventy".