25340070 has 64 divisors (see below), whose sum is σ = 70580736. Its totient is φ = 5702400.

The previous prime is 25340057. The next prime is 25340083. The reversal of 25340070 is 7004352.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (25340057) and next prime (25340083).

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

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, 13170 + ... + 14970.

It is an arithmetic number, because the mean of its divisors is an integer number (1102824).

Almost surely, 2^25340070 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25340070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35290368).

25340070 is an abundant number, since it is smaller than the sum of its proper divisors (45240666).

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

25340070 is a wasteful number, since it uses less digits than its factorization.

25340070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1885.

The product of its (nonzero) digits is 840, while the sum is 21.

The square root of 25340070 is about 5033.8921323366. The cubic root of 25340070 is about 293.7216348045.

The spelling of 25340070 in words is "twenty-five million, three hundred forty thousand, seventy".