102040070 has 32 divisors (see below), whose sum is σ = 210919680. Its totient is φ = 35151840.

The previous prime is 102040061. The next prime is 102040073. The reversal of 102040070 is 70040201.

It is a happy number.

It is a super-4 number, since 4×102040070⁴ (a number of 33 digits) contains 4444 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102040073) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22322 + ... + 26501.

It is an arithmetic number, because the mean of its divisors is an integer number (6591240).

Almost surely, 2^102040070 is an apocalyptic number.

102040070 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102040070 is an abundant number, since it is smaller than the sum of its proper divisors (108879610).

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

102040070 is a wasteful number, since it uses less digits than its factorization.

102040070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48860.

The product of its (nonzero) digits is 56, while the sum is 14.

The square root of 102040070 is about 10101.4885041760. The cubic root of 102040070 is about 467.2940479014.

Adding to 102040070 its reverse (70040201), we get a palindrome (172080271).

The spelling of 102040070 in words is "one hundred two million, forty thousand, seventy".