19772948 has 48 divisors (see below), whose sum is σ = 39325440. Its totient is φ = 8636544.

The previous prime is 19772941. The next prime is 19772953. The reversal of 19772948 is 84927791.

It is a super-2 number, since 2×19772948² = 781938945221408, which contains 22 as substring.

Its product of digits (254016) is a multiple of the sum of its prime factors (336).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19772941) 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, 82613 + ... + 82851.

It is an arithmetic number, because the mean of its divisors is an integer number (819280).

Almost surely, 2^19772948 is an apocalyptic number.

It is an amenable number.

19772948 is a deficient number, since it is larger than the sum of its proper divisors (19552492).

19772948 is a wasteful number, since it uses less digits than its factorization.

19772948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336 (or 334 counting only the distinct ones).

The product of its digits is 254016, while the sum is 47.

The square root of 19772948 is about 4446.6783108293. The cubic root of 19772948 is about 270.4106599500.

The spelling of 19772948 in words is "nineteen million, seven hundred seventy-two thousand, nine hundred forty-eight".