402620070 has 64 divisors (see below), whose sum is σ = 1020096000. Its totient is φ = 101419776.

The previous prime is 402620059. The next prime is 402620087. The reversal of 402620070 is 70026204.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 249426 + ... + 251034.

It is an arithmetic number, because the mean of its divisors is an integer number (15939000).

Almost surely, 2^402620070 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 402620070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (510048000).

402620070 is an abundant number, since it is smaller than the sum of its proper divisors (617475930).

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

402620070 is a wasteful number, since it uses less digits than its factorization.

402620070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2077.

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 402620070 is about 20065.3948378795. The cubic root of 402620070 is about 738.4115366869.

Adding to 402620070 its reverse (70026204), we get a palindrome (472646274).

The spelling of 402620070 in words is "four hundred two million, six hundred twenty thousand, seventy".