70003542 has 32 divisors (see below), whose sum is σ = 161667072. Its totient is φ = 19793664.

The previous prime is 70003541. The next prime is 70003547. The reversal of 70003542 is 24530007.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70003541) 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, 4518 + ... + 12665.

It is an arithmetic number, because the mean of its divisors is an integer number (5052096).

Almost surely, 2^70003542 is an apocalyptic number.

70003542 is an abundant number, since it is smaller than the sum of its proper divisors (91663530).

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

70003542 is a wasteful number, since it uses less digits than its factorization.

70003542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17292.

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

The square root of 70003542 is about 8366.8119376498. The cubic root of 70003542 is about 412.1354810982.

Adding to 70003542 its reverse (24530007), we get a palindrome (94533549).

The spelling of 70003542 in words is "seventy million, three thousand, five hundred forty-two".