1972551042 has 96 divisors (see below), whose sum is σ = 5525904384. Its totient is φ = 512341200.

The previous prime is 1972551023. The next prime is 1972551107. The reversal of 1972551042 is 2401552791.

It is a super-2 number, since 2×1972551042² = 7781915226590571528, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1972550988 and 1972551006.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11067 + ... + 63777.

It is an arithmetic number, because the mean of its divisors is an integer number (57561504).

Almost surely, 2^1972551042 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1972551042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2762952192).

1972551042 is an abundant number, since it is smaller than the sum of its proper divisors (3553353342).

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

1972551042 is a wasteful number, since it uses less digits than its factorization.

1972551042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52746 (or 52734 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 36.

The square root of 1972551042 is about 44413.4106098597. The cubic root of 1972551042 is about 1254.1305580511.

The spelling of 1972551042 in words is "one billion, nine hundred seventy-two million, five hundred fifty-one thousand, forty-two".