1604402026 has 8 divisors (see below), whose sum is σ = 2410347744. Its totient is φ = 800952780.

The previous prime is 1604402017. The next prime is 1604402027. The reversal of 1604402026 is 6202044061.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1604402026² = 5148211722065809352, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1604402027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 622510 + ... + 625081.

It is an arithmetic number, because the mean of its divisors is an integer number (301293468).

Almost surely, 2^1604402026 is an apocalyptic number.

1604402026 is a deficient number, since it is larger than the sum of its proper divisors (805945718).

1604402026 is a wasteful number, since it uses less digits than its factorization.

1604402026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1248236.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 1604402026 is about 40054.9875296448. The cubic root of 1604402026 is about 1170.6787465948.

Adding to 1604402026 its reverse (6202044061), we get a palindrome (7806446087).

The spelling of 1604402026 in words is "one billion, six hundred four million, four hundred two thousand, twenty-six".