1953500740 has 12 divisors (see below), whose sum is σ = 4102351596. Its totient is φ = 781400288.

The previous prime is 1953500737. The next prime is 1953500749. The reversal of 1953500740 is 470053591.

It can be written as a sum of positive squares in 2 ways, for example, as 975562756 + 977937984 = 31234^2 + 31272^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1953500696 and 1953500705.

It is not an unprimeable number, because it can be changed into a prime (1953500749) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48837499 + ... + 48837538.

It is an arithmetic number, because the mean of its divisors is an integer number (341862633).

Almost surely, 2^1953500740 is an apocalyptic number.

1953500740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1953500740 is an abundant number, since it is smaller than the sum of its proper divisors (2148850856).

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

1953500740 is a wasteful number, since it uses less digits than its factorization.

1953500740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97675046 (or 97675044 counting only the distinct ones).

The product of its (nonzero) digits is 18900, while the sum is 34.

The square root of 1953500740 is about 44198.4246325590. The cubic root of 1953500740 is about 1250.0801527270.

The spelling of 1953500740 in words is "one billion, nine hundred fifty-three million, five hundred thousand, seven hundred forty".