1650620376 has 128 divisors (see below), whose sum is σ = 4791960000. Its totient is φ = 525772800.

The previous prime is 1650620359. The next prime is 1650620381. The reversal of 1650620376 is 6730260561.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1650620376.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 631360 + ... + 633968.

Almost surely, 2^1650620376 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1650620376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2395980000).

1650620376 is an abundant number, since it is smaller than the sum of its proper divisors (3141339624).

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

1650620376 is a wasteful number, since it uses less digits than its factorization.

1650620376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2754 (or 2744 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 1650620376 is about 40627.8276062110. The cubic root of 1650620376 is about 1181.8138282888.

The spelling of 1650620376 in words is "one billion, six hundred fifty million, six hundred twenty thousand, three hundred seventy-six".