82451402 has 16 divisors (see below), whose sum is σ = 135489024. Its totient is φ = 37320000.

The previous prime is 82451381. The next prime is 82451423. The reversal of 82451402 is 20415428.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (82451381) and next prime (82451423).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2474 + ... + 13077.

It is an arithmetic number, because the mean of its divisors is an integer number (8468064).

Almost surely, 2^82451402 is an apocalyptic number.

82451402 is a deficient number, since it is larger than the sum of its proper divisors (53037622).

82451402 is a wasteful number, since it uses less digits than its factorization.

82451402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15805.

The product of its (nonzero) digits is 2560, while the sum is 26.

The square root of 82451402 is about 9080.2754363510. The cubic root of 82451402 is about 435.2438884257.

The spelling of 82451402 in words is "eighty-two million, four hundred fifty-one thousand, four hundred two".