70214040 has 160 divisors (see below), whose sum is σ = 254303280. Its totient is φ = 17273088.

The previous prime is 70213939. The next prime is 70214041. The reversal of 70214040 is 4041207.

It is a happy number.

It is a super-2 number, since 2×70214040² = 9860022826243200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70214041) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 41287 + ... + 42953.

Almost surely, 2^70214040 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 70214040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127151640).

70214040 is an abundant number, since it is smaller than the sum of its proper divisors (184089240).

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

70214040 is a wasteful number, since it uses less digits than its factorization.

70214040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1703 (or 1690 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 18.

The square root of 70214040 is about 8379.3818387755. The cubic root of 70214040 is about 412.5481596664.

Adding to 70214040 its reverse (4041207), we get a palindrome (74255247).

The spelling of 70214040 in words is "seventy million, two hundred fourteen thousand, forty".