402379653 has 16 divisors (see below), whose sum is σ = 581245056. Its totient is φ = 246131520.

The previous prime is 402379651. The next prime is 402379661. The reversal of 402379653 is 356973204.

It is not a de Polignac number, because 402379653 - 2¹ = 402379651 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (402379651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24378 + ... + 37403.

It is an arithmetic number, because the mean of its divisors is an integer number (36327816).

Almost surely, 2^402379653 is an apocalyptic number.

It is an amenable number.

402379653 is a deficient number, since it is larger than the sum of its proper divisors (178865403).

402379653 is a wasteful number, since it uses less digits than its factorization.

402379653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61964.

The product of its (nonzero) digits is 136080, while the sum is 39.

The square root of 402379653 is about 20059.4031067726. The cubic root of 402379653 is about 738.2645312369.

The spelling of 402379653 in words is "four hundred two million, three hundred seventy-nine thousand, six hundred fifty-three".