1972354950 has 36 divisors (see below), whose sum is σ = 5299061508. Its totient is φ = 525961200.

The previous prime is 1972354939. The next prime is 1972354973. The reversal of 1972354950 is 594532791.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 1972354896 and 1972354905.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2191056 + ... + 2191955.

It is an arithmetic number, because the mean of its divisors is an integer number (147196153).

Almost surely, 2^1972354950 is an apocalyptic number.

1972354950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1972354950 is an abundant number, since it is smaller than the sum of its proper divisors (3326706558).

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

1972354950 is a wasteful number, since it uses less digits than its factorization.

1972354950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4383029 (or 4383021 counting only the distinct ones).

The product of its (nonzero) digits is 340200, while the sum is 45.

The square root of 1972354950 is about 44411.2029785278. The cubic root of 1972354950 is about 1254.0889988192.

The spelling of 1972354950 in words is "one billion, nine hundred seventy-two million, three hundred fifty-four thousand, nine hundred fifty".