1071620004 has 72 divisors (see below), whose sum is σ = 3132450048. Its totient is φ = 282623040.

The previous prime is 1071619987. The next prime is 1071620021. The reversal of 1071620004 is 4000261701.

It is an interprime number because it is at equal distance from previous prime (1071619987) and next prime (1071620021).

It is a super-2 number, since 2×1071620004² = 2296738865945920032, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 62452 + ... + 77739.

Almost surely, 2^1071620004 is an apocalyptic number.

1071620004 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1071620004 is an abundant number, since it is smaller than the sum of its proper divisors (2060830044).

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

1071620004 is a wasteful number, since it uses less digits than its factorization.

1071620004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140225 (or 140216 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 1071620004 is about 32735.6075856246. The cubic root of 1071620004 is about 1023.3250468005.

Adding to 1071620004 its reverse (4000261701), we get a palindrome (5071881705).

The spelling of 1071620004 in words is "one billion, seventy-one million, six hundred twenty thousand, four".