65381492 has 24 divisors (see below), whose sum is σ = 126114240. Its totient is φ = 29410560.

The previous prime is 65381471. The next prime is 65381497. The reversal of 65381492 is 29418356.

It is a happy number.

It is a super-2 number, since 2×65381492² = 8549478992292128, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65381497) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3392 + ... + 11927.

It is an arithmetic number, because the mean of its divisors is an integer number (5254760).

Almost surely, 2^65381492 is an apocalyptic number.

It is an amenable number.

65381492 is a deficient number, since it is larger than the sum of its proper divisors (60732748).

65381492 is a wasteful number, since it uses less digits than its factorization.

65381492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15431 (or 15429 counting only the distinct ones).

The product of its digits is 51840, while the sum is 38.

The square root of 65381492 is about 8085.8822647872. The cubic root of 65381492 is about 402.8576443883.

The spelling of 65381492 in words is "sixty-five million, three hundred eighty-one thousand, four hundred ninety-two".