142077402 has 80 divisors (see below), whose sum is σ = 346156800. Its totient is φ = 43390080.

The previous prime is 142077401. The next prime is 142077427. The reversal of 142077402 is 204770241.

It is a happy number.

It is a super-3 number, since 3×142077402³ (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (142077401) 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, 94674 + ... + 96162.

It is an arithmetic number, because the mean of its divisors is an integer number (4326960).

Almost surely, 2^142077402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142077402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173078400).

142077402 is an abundant number, since it is smaller than the sum of its proper divisors (204079398).

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

142077402 is a wasteful number, since it uses less digits than its factorization.

142077402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1553 (or 1544 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 27.

The square root of 142077402 is about 11919.6225611384. The cubic root of 142077402 is about 521.8051194849.

It can be divided in two parts, 14207 and 7402, that added together give a square (21609 = 147²).

The spelling of 142077402 in words is "one hundred forty-two million, seventy-seven thousand, four hundred two".