1972749762 has 32 divisors (see below), whose sum is σ = 4387521600. Its totient is φ = 657038304.

The previous prime is 1972749761. The next prime is 1972749763. The reversal of 1972749762 is 2679472791.

1972749762 is a `hidden beast` number, since 1 + 97 + 2 + 7 + 497 + 62 = 666.

It is an interprime number because it is at equal distance from previous prime (1972749761) and next prime (1972749763).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 1972749699 and 1972749708.

It is not an unprimeable number, because it can be changed into a prime (1972749761) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53478 + ... + 82494.

It is an arithmetic number, because the mean of its divisors is an integer number (137110050).

Almost surely, 2^1972749762 is an apocalyptic number.

1972749762 is an abundant number, since it is smaller than the sum of its proper divisors (2414771838).

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

1972749762 is a wasteful number, since it uses less digits than its factorization.

1972749762 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30287 (or 30281 counting only the distinct ones).

The product of its digits is 2667168, while the sum is 54.

The square root of 1972749762 is about 44415.6477156418. The cubic root of 1972749762 is about 1254.1726714448.

The spelling of 1972749762 in words is "one billion, nine hundred seventy-two million, seven hundred forty-nine thousand, seven hundred sixty-two".