1002691404 has 288 divisors, whose sum is σ = 3154464768. Its totient is φ = 264384000.

The previous prime is 1002691321. The next prime is 1002691409. The reversal of 1002691404 is 4041962001.

It is not an unprimeable number, because it can be changed into a prime (1002691409) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 9734817 + ... + 9734919.

Almost surely, 2^1002691404 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1002691404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1577232384).

1002691404 is an abundant number, since it is smaller than the sum of its proper divisors (2151773364).

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

1002691404 is a wasteful number, since it uses less digits than its factorization.

1002691404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229 (or 224 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 1002691404 is about 31665.3028408067. The cubic root of 1002691404 is about 1000.8963310173.

The spelling of 1002691404 in words is "one billion, two million, six hundred ninety-one thousand, four hundred four".